From: Arnd Bergmann <arnd@arndb.de>
To: Jaswinder Singh Rajput <jaswinder@kernel.org>
Cc: Linus Torvalds <torvalds@linux-foundation.org>,
Ingo Molnar <mingo@elte.hu>,
Linux Kernel Mailing List <linux-kernel@vger.kernel.org>,
Andrew Morton <akpm@linux-foundation.org>,
Sam Ravnborg <sam@ravnborg.org>,
Jaswinder Singh Rajput <jaswinderrajput@gmail.com>,
"David S. Miller" <davem@davemloft.net>
Subject: Re: [mingo@elte.hu: [git pull] headers_check fixes]
Date: Wed, 28 Jan 2009 13:37:51 +0100 [thread overview]
Message-ID: <200901281337.52294.arnd@arndb.de> (raw)
In-Reply-To: <1233106614.3256.6.camel@localhost.localdomain>
On Wednesday 28 January 2009, Jaswinder Singh Rajput wrote:
> If we do not want to export __arch_swab32 and __arch_swab64 then we can
> put whole block in #ifdef __KERNEL__ then we will get rid of above
> solution.
For the specific x86 swab code, that would certainly be the simplest
way, user space should not be using those inline assemblies either
way.
I think the more interesting question is whether we want to export
*any* inline helpers that are not part of the ABI to user space.
We already killed most of them (spinlocks, atomics, ...) and what
remains is basically just the byteorder code. All that is required
for the ABI is the information whether the system is big- or
little-endian, but not all the rest.
Arnd <><
next prev parent reply other threads:[~2009-01-28 12:41 UTC|newest]
Thread overview: 38+ messages / expand[flat|nested] mbox.gz Atom feed top
[not found] <20090127222825.GA27097@elte.hu>
2009-01-27 22:57 ` [mingo@elte.hu: [git pull] headers_check fixes] Linus Torvalds
2009-01-27 23:22 ` H. Peter Anvin
2009-01-27 23:29 ` Linus Torvalds
2009-01-28 0:12 ` H. Peter Anvin
2009-01-28 0:19 ` Linus Torvalds
2009-01-28 1:02 ` H. Peter Anvin
2009-01-27 23:31 ` Ingo Molnar
2009-01-27 23:43 ` Linus Torvalds
2009-01-27 23:51 ` Vegard Nossum
2009-01-30 14:01 ` Jaswinder Singh Rajput
2009-01-30 18:20 ` Ingo Molnar
2009-01-28 0:03 ` Harvey Harrison
2009-01-28 1:36 ` Jaswinder Singh Rajput
2009-01-28 12:37 ` Arnd Bergmann [this message]
2009-01-28 17:48 ` H. Peter Anvin
2009-01-28 19:22 ` Harvey Harrison
2009-01-28 19:44 ` Linus Torvalds
2009-01-28 20:03 ` Harvey Harrison
2009-01-28 21:25 ` H. Peter Anvin
2009-01-28 21:58 ` [PATCH] x86: do not expose CONFIG_BSWAP to userspace Harvey Harrison
2009-01-28 22:13 ` Linus Torvalds
2009-01-28 22:40 ` Harvey Harrison
2009-01-30 20:37 ` Pavel Machek
2009-01-28 22:15 ` H. Peter Anvin
2009-01-28 22:38 ` Harvey Harrison
2009-01-28 23:04 ` Ben Pfaff
2009-01-30 18:20 ` H. Peter Anvin
2009-01-28 23:27 ` H. Peter Anvin
2009-01-28 23:36 ` Harvey Harrison
2009-01-28 23:47 ` H. Peter Anvin
2009-02-03 18:19 ` Arnd Bergmann
2009-01-31 18:43 ` Maciej W. Rozycki
2009-01-31 20:24 ` H. Peter Anvin
2009-01-28 23:24 ` Arnd Bergmann
2009-01-28 23:30 ` H. Peter Anvin
2009-01-28 20:49 ` [mingo@elte.hu: [git pull] headers_check fixes] Sam Ravnborg
2009-01-28 21:23 ` H. Peter Anvin
2009-01-28 21:06 ` Sam Ravnborg
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